Correct Answer: Option C
B.D. for 3/2 years = Tk. 558.
B.D. for 2 years = Tk. {558 x (2/3) x 2}
= Tk. 744
T.D. for 2 years = Tk. 600.
So, Sum = (B.D. x T.D.)/( B.D. - T.D)
= Tk. (744 x 600)/144 = Tk. 3100.
Thus, Tk. 744 is S.I. on Tk. 3100 for 2 years .
So, Rate = (100 x 744)/(3100 x 2)% = 12%
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